(2002). Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill.
シカゴスタイル引用形Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill, 2002.
MLA引用形式Headway: Intermediate- Upper- Advanced. New York: Mc Graw-Hill, 2002.
警告: この引用は必ずしも正確ではありません.